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Best Practice Case Studies
Chest - Case 9 (3rd ed)
Chest - Case 9 (3rd ed)
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Pdf Summary
In the case study question examined, a medical practitioner is assessing a patient with significant bruising on the anterior chest wall, indicative of a soft tissue injury. The practitioner is focused on palpating the pectoralis major muscle. Several anatomical landmarks are being considered for effective palpation. The correct answer to which landmark is least helpful is the coracoid process (option E). <br /><br />The reasoning provided clarifies the roles of each anatomical point in relation to the pectoralis major muscle. The sternum (option A) and the second to sixth ribs (option C) serve as origins for the sternal head of the muscle. The clavicle (option B) acts as the origin for the clavicular head, specifically the medial part. The humerus (option D) is the site of insertion for the pectoralis major. <br /><br />In contrast, the coracoid process (option E) is not relevant to the palpation of the pectoralis major, as it pertains to the pectoralis minor muscle, whose origin is from the third to fifth ribs and inserts on the scapula. This anatomical distinction underscores why the coracoid process is the least useful point in palpating the pectoralis major. <br /><br />References are provided, including the 37th edition of Gray’s Anatomy and articles from Radiopaedia.org and the University of Washington’s Department of Radiology, which back up the anatomical descriptions and functional roles of these muscles.
Meta Tag
Edition
3rd Edition
Related Case
3rd Edition, CASE 09
Topic
Chest
Keywords
pectoralis major
anatomical landmarks
coracoid process
soft tissue injury
palpation
sternum
clavicle
humerus
pectoralis minor
Gray's Anatomy
3rd Edition
3rd Edition, CASE 09
Chest
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